643680128

素因数分解:

$2^7\times 7^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{757}}^1$

素因数の和:864

約数の個数: 128

約数和(自身を含む): 1601987520

約数和(自身を除く): 958307392

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 64, 73, 91, 104, 112, 128, 146, 182, 208, 224, 292, 364, 416, 448, 511, 584, 728, 757, 832, 896, 949, 1022, 1168, 1456, 1514, 1664, 1898, 2044, 2336, 2912, 3028, 3796, 4088, 4672, 5299, 5824, 6056, 6643, 7592, 8176, 9344, 9841, 10598, 11648, 12112, 13286, 15184, 16352, 19682, 21196, 24224, 26572, 30368, 32704, 39364, 42392, 48448, 53144, 55261, 60736, 65408, 68887, 78728, 84784, 96896, 106288, 110522, 121472, 137774, 157456, 169568, 212576, 221044, 275548, 314912, 339136, 386827, 425152, 442088, 551096, 629824, 678272, 718393, 773654, 850304, 884176, 1102192, 1259648, 1436786, 1547308, 1768352, 2204384, 2873572, 3094616, 3536704, 4408768, 5028751, 5747144, 6189232, 7073408, 8817536, 10057502, 11494288, 12378464, 20115004, 22988576, 24756928, 40230008, 45977152, 49513856, 80460016, 91954304, 160920032, 321840064, 643680128]

約数ペア:

[(1, 643680128), (2, 321840064), (4, 160920032), (7, 91954304), (8, 80460016), (13, 49513856), (14, 45977152), (16, 40230008), (26, 24756928), (28, 22988576), (32, 20115004), (52, 12378464), (56, 11494288), (64, 10057502), (73, 8817536), (91, 7073408), (104, 6189232), (112, 5747144), (128, 5028751), (146, 4408768), (182, 3536704), (208, 3094616), (224, 2873572), (292, 2204384), (364, 1768352), (416, 1547308), (448, 1436786), (511, 1259648), (584, 1102192), (728, 884176), (757, 850304), (832, 773654), (896, 718393), (949, 678272), (1022, 629824), (1168, 551096), (1456, 442088), (1514, 425152), (1664, 386827), (1898, 339136), (2044, 314912), (2336, 275548), (2912, 221044), (3028, 212576), (3796, 169568), (4088, 157456), (4672, 137774), (5299, 121472), (5824, 110522), (6056, 106288), (6643, 96896), (7592, 84784), (8176, 78728), (9344, 68887), (9841, 65408), (10598, 60736), (11648, 55261), (12112, 53144), (13286, 48448), (15184, 42392), (16352, 39364), (19682, 32704), (21196, 30368), (24224, 26572)]